SYSTEM DIAGRAMS SD Operation Manual 55 © 2009 Yanmar Marine International Color coding for wiring diagrams R Red B Black W White Y Yellow L Blue O Orange L/B Blue/Black W/L White/Blue Y/W Yellow/White W/R White/Red L/R Blue/Red W/B White/Black R/B Red/Black Allowable length by cross sectional area of battery cable Section of cable mm2 (in.2) Allowable length L = 1 + 2 + 3 m (ft) 15 (0.023) 20 (0.031) 30 (0.046) 40 (0.062) 50 (0.077) 60 (0.093)